Window-fastener.



No. $54,357:; Patented July 24,1900.

w. n. WATSON.

WINDOW FASTENER.

(Applicatiozi filed June 10, 1900.

(No Model.)

ilnrrnn STATES PATENT Orrrcnw WILLIAM D. WATSON, or CHICAGO, ILLINOIS:

WlNDOW-FASTENER.

SPECIFICATION forming part of Letters Patent No. 654,371, dated July 24,1900. Application filed June 16, 1900. Serial No. 20,547- v (No modeL)To all whom, it may conce'rn: 7

Be it known that 1, WILLIAM D. WATSON, a citizen of the United States,residing at Chicago, in the county of Cook, in the State of Illinois,(and whose post-office address is No. 229 Walnut street,Ohicago,lllinois,) have invented Improvements in Window-Fasteners, ofwhich the following is a specification. My invention relates toimprovements in fasteners or latches for swinging structures such aswindows, doors, and the likeand is particularly designed for applicationto pivoted or swinging windows of the kind referred to in my concurrentapplication, Serial No. 3,792, filed February 3, 1900.

The object of the invention is to provide an improved and simplifiedconstruction in devices of this character; audit consists in the mattersherein set forth, and particularly pointed out in the appended claim.

The invention will be fully understood from the following description ofthe construction illustrated in the accompanying drawings, in which-Figure 1 is a sectional elevation of a swinging window provided with afastener constructed in accordance with my invention. Fig. 2 is asimilar view showing the sash as swung slightly open. Fig. 3 is a topplan detail better showing the manner of securing the fastener to thesash.

In said drawings, 1 designates the windowsash, in which the glass Gissecured in any suitable manner, and 2 is the window-casing, which isbuilt into the windoW-openin g in the wall of the building to receivethe sash. The sash-frame is herein shown as of tubular metallicconstruction,with an inwardly channel 4 extending entirelyaround theframe and through which bolts 5 are passed to pivotally support the sashwithin the casing, these pivot-bolts being conveniently so located thatthe weight of the sash always tends to swing it closed.

The window-fastener which forms the invention of this applicationconsists of an oscillatory metallic plate 6, which is pivoted at 7between the lugs 8 of a clip 9, that is rigidly secured to the upperedge of the sash by rivets 10 or the like. This plate is provided with acontact end 11, which is arranged to tact of its end 11 with the casing.

strike the window-casing 2 as the Window ap proaohes its closedposition, and alocking end or bolt 12, which engages a slot or socket 13in said casing when the window is closed. The two ends 11 and 12 of theplate are arranged on opposite sides of the pivot 7, and the locking endor bolt 12 is made arc-shaped, so that it will oscillate freely throughan aperture 14 in the top of the channel 4: of the sash as the fasteneris oscillated by the con- A releasing-cord 15 is secured to the plate 6at any suitable point,where a pull upon the cord will tend to swing thefastener about its pivot, so as to retract the bolt 12 from the slot orsocket 13, said cord being herein shown as secured to the end of an armor lever 16, formed on the plate 6 on the same side of the pivot as thebolt 12 and made of such length as to afford a conveniently greatleverage for re tracting the latter.

The operation of the fastener thus described will be readily understoodfrom the drawings. When the sash occupies an open position, the fastenerswings free on its pivot with its look ing-terminal 12 withdrawn almostwithin the sash, the plate 6 being made of such shape and proportionsthat it naturally gravitates into this position. Then as the window isswung shut the contact end 11 of the fastener strikes the casing 2 andcauses the bolt 12 to be projected upward into the slot or socket 13 ofthe casing, thus locking the window just as it reaches its closedposition. The bolt will then resist any amount of pressure directlyapplied to open the window; but said bolt may be readily withdrawn by aslight pull lock the window whether the latter is forced shut by hand oris simply permitted to close of its own weight or otherwise -as, forexam= ple, when released by an automatic ar pro-- tection device such asis commonlyrapplied in connection with windows of this character.

1 claim as my invention The combination with the window-casing 2 and thesash 1 pivotally mounted to'swing therein upon a horizontal axis, of thefastener fastener and open the window, substantially 6 pivoted-to thetop of the sash at 7 and proas described.

vided with an outer contact end 11 arranged In testimony that I claimthe foregoing as to project upwardly beside the casing and anmyinvention I affix my signature, in presence inner locking end 12arranged to project upof two subscribing witnesses, this 11th day of 15wardly into the locking-socket 13 in the cas- June, A. D. 1900.

ing, and a pull-cord or the like applied to the WM. D. WATSON. fasteneron the inner side of its pivot and \Vitnesses: depending verticallytherefrom, whereby a HENRY W. CARTER, 1o downward pull upon the cordwill release the N. R. BAILEY.

